Fig. 3From: Loss-of-function in GIGANTEA confers resistance to PPO-inhibiting herbicide tiafenacil through transcriptional activation of antioxidant genes in ArabidopsisMutations in GI show reduced tiafenacil-induced oxidative damage. Twenty-day-old plants were exposed to water (− Tia) or 0.5 µM tiafenacil (+ Tia) by foliar spray application and grown for another 3 days. A Necrotic symptoms. The photographs were taken 3 days after treatments. Scale bar = 1 cm. B MDA contents. C Histochemical DAB staining for H2O2. Scale bar = 1 cm. D Quantification of H2O2 contents. Values represent means ± SE of three independent biological replicates. Asterisks indicate significant differences (*p < 0.05, ***p < 0.001, n.s., no significant difference) compared to Col-0 using two-tailed Student’s t-testBack to article page